Using street view, you can often see "Social Security" on a building or sign.

Social Security Office Directions and Notes :

THE NEW OFFICE IS LOCATED EAST OF EXIT 55 OF THE NEW YORK STATE THRUWAY, IN THE SENECA SQUARE PLAZA.

West Seneca Social Security Office Notes

Try online services like setting up direct deposit at
ssa.gov.
Social Security office hours were extended in March, 2015. Now, generally,
all Social Security offices are open 9:00 to 4:00, except Wednesdays
when hours are 9:00 to noon. Try calling to get an appointment
before travelling. Fridays may be more open.